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aliya0001 [1]
2 years ago
14

The ratio of two numbers is 1:4, and the sum of these numbers is 40. Find the numbers

Mathematics
1 answer:
Irina-Kira [14]2 years ago
3 0
X + 4x = 40

5x = 40

5x/5 = 40/5

x = 8


1x 8 = 8

4x 8 = 32

Check=

8 + 32 = 40

The numbers are 8 and 32
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How many roots does the equation 3x² = 1 - 7x have and what is the nature of the roots
AnnyKZ [126]

Answer:

Step-by-step explanation:

Rewrite this quadratic in standard form:  3x^2 + 7x - 1.

The coefficients of x are {3, 7, -1}, and so the discriminant is b^2 - 4ac, or

7^2 - 4(3)(-1), or 49 + 12, or 61.  Because the discriminant is positive, this quadratic has two real, unequal roots

7 0
3 years ago
3. A boy mixed 500g of sugar and 120g of salt in 106g of lime juice. What will be the
Fed [463]

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Option C...726 g

Step-by-step explanation:

Mass of;

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salt = 120g

lime juice = 106g

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6 0
3 years ago
What are the coordinates of the intersection of the graphs of 3x - y^2 = 12 and y = -3
inessss [21]

Answer:

(7,-3)

Step-by-step explanation:

y = -3

substitute in the first equation

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3x - (-3)^2 = 12

3x - 9 = 12

3x = 12 + 9

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x = 7

coordinates of intersection (7,-3)

3 0
2 years ago
What is the area of the firgure?
qaws [65]

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4 0
3 years ago
Kishore bought a basket containing 30 orangs for rs 310. If he sells the orangs at rs 12 each , what Would be it's profit or los
iris [78.8K]

Given : Kishore bought a basket containing 30 oranges for rs 310. If he sells the oranges at rs 12 each , what Would be it's profit or loss?

Solution :

Cost price of oranges = rs.310

As we know that each oranges cost rs.12

So, selling price of oranges is 30 × 12 = rs.360

Now, <u>finding profit or loss</u>

Profit = Selling Price - Cost Price

Profit = rs.360 - rs.310

Profit = rs.50

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2 years ago
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